Subtract 45/64 from 70/90
70/90 - 45/64 is 43/576.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 64 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 90 × 32 = 2880,
70/90 = 70 × 32/90 × 32 = 2240/2880 - Likewise, for the 2nd fraction, since 64 × 45 = 2880,
45/64 = 45 × 45/64 × 45 = 2025/2880 - Subtract the two like fractions:
2240/2880 - 2025/2880 = 2240 - 2025/2880 = 215/2880 - After reducing the fraction, the answer is 43/576
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Related: 70/90-90/64